Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps.
This copper tape is adhesive-backed, 5mm wide and comes in rolls of 50 feet.
Thickness: 3 mil
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You can visit the official link: https://www.sparkfun.com/products/10561